Questions & Answers

Does BlueTube v.1 always hum when nothing is plugged into the input?

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asked Aug 21, 2019 in PreAmps, Signal Processors and Monitoring Hardware by tuhewert (120 points)
I have a BlueTube v.1 Mic Preamp. It will make a 60hz hum when nothing is plugged into the input, but stops humming and sounds fine when a cable is inserted into the input jack. Is this by design or are the switching contacts in the jack worn out?

Thanks!
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